Solid-State NMR of Complex Hybrid Organic-Inorganic Materials

我的研究主要涉及开发固态核磁共振（SSNMR）方法，以研究复杂的杂化有机-无机材料（CHOIM）的结构和分子运动，使用氟和磷作为探针。合成CHOIM存在于替代能源（燃料电池，太阳能电池）和电池技术中，而天然CHOIM则以沥青和生物材料等复杂混合物的形式存在。CHOIM通常由软、硬和流体成分的各种组合组成，必须对其进行研究，而不是孤立地进行研究，以便了解引起感兴趣的特性和行为的成分之间的相互作用。因此，它们理想地通过SSNMR光谱表征。结构和动态SSNMR方法以及模拟工具的库将不断扩展，以应对新兴材料技术的复杂性所带来的新挑战。莱斯布里奇的设施是加拿大材料SSNMR设备最齐全的设施之一，这是UofL对其材料化学研究能力的一系列战略投资的结果，通过建立最先进的合成和表征设施，从而形成了氟化学和材料表征专业中心的核心。感兴趣的材料包括：无机聚合物、含氟聚合物和嵌段共聚物的纳米复合材料。这些新的SSNMR方法还将用于对沥青进行化学指纹识别，这使传统的表征方法变得混乱，以提供急需的结构和成分信息，从而推进油砂行业的升级和提取过程。这个过程涉及到通过低水平直接测量引入19 F作为探针。我的研究小组是加拿大唯一专注于有机-无机杂化材料SSNMR的研究机构。加拿大的存在促进了我们的材料科学界参与新的有机-无机混合技术的开发，从而受益于其不断扩大的应用范围和随后在替代能源，电子，环境，化石燃料，医药和农业领域的经济影响。

My research is primarily concerned with developing Solid-State Nuclear Magnetic Resonance (SSNMR) methods to study the structure and molecular motion of Complex Hybrid Organic-Inorganic Materials (CHOIM) using fluorine and phosphorous as probes. Synthetic CHOIMs are found in alternative energy (fuels cells, solar cells) and battery technologies, whereas natural CHOIMs exist as complex mixtures such as bitumen and biomaterials. CHOIMs are typically composed of various combinations of soft, hard and fluid components, which have to be studied as they are, not in isolation, in order to appreciate the interactions between components that give rise to the properties and behaviours of interest. As such, they are ideally characterized by SSNMR spectroscopy. The repertoire of structural and dynamic SSNMR methods, as well as simulations tools, will be continually expanded to meet new challenges posed by the complexity of emerging material technologies. The facility in Lethbridge is one of the best equipped in Canada for SSNMR of materials, resulting from a series of strategic investments by the UofL in its materials chemistry research capability, by building state-of-the-art synthetic and characterization facilities, thereby forming the core of a centre of expertise in fluorine chemistry and materials characterization. Materials of interest include: nanocomposites of inorganic polymers, fluoropolymers, and block copolymers. These new SSNMR methods will also be used to chemically fingerprint bitumen, which has confounded traditional characterization methods, to provide much needed structural and compositional information to advance upgrading and extraction processes for the oil sands industry. This process involves the introduction of 19F as a probe by low level direct fluorination. My research group represents the only Canadian research presence focused on SSNMR of hybrid organic-inorganic materials. A Canadian presence facilitates the participation of our materials science community in the development of new organic-inorganic hybrid technologies, thus benefiting from its ever widening range of applications and subsequent economic impact in the areas of alternative energy, electronics, environment, fossil fuels, medicine and agriculture.